The issue is:
Over time, pollutants, leaves, and bird droppings can build up in the gutters and on the roof before eventually making their way into the tank. These pollutants have the potential to harm human health if they are allowed to worsen the quality of the water. Read more about Rainwater Tank Treatment by visiting our website and if you have any questions related to this topic, connect with us.
You’re undoubtedly wondering now:
How is a rainwater tank cleaned?
You’ve arrived at the ideal location! We at Pristine guard have created a comprehensive guide on how to clean a water tank and ensure that it is in good operating condition.
Let’s get started.
Table of Contents
The fundamentals of maintaining rainwater harvesting
You must make sure that your water tank functions effectively and conforms with applicable rainwater harvesting regulations, such as BS EN 16941-1 – Requirements for on-site collection and use of rainwater, regardless of whether it provides greywater for your garden or potable drinking water.
Please be aware that only authorized personnel should ever enter the tank.
In light of that, the following crucial maintenance procedures should be followed:
Check the mains backup supply
Verify that the mains backup water supply activates when the rainwater level is too low. Test the system by adjusting the float-switch to different levels. If the backup water doesn’t flow automatically, seek professional assistance for a thorough examination and repair to prevent accidents. Regular adherence to these maintenance steps will help ensure the continued effectiveness and safety of your rainwater harvesting system.
Check the gutters and downpipes
Gutters and downpipes play a critical role in directing water to the tank, but they are prone to blockage from debris, leaves and dirt, particularly during autumn. So, you should regularly inspect and clean these components, and trim overhanging tree branches. Consider investing in quality gutter brushes for easier maintenance, especially if you have a few trees in your garden.
Check the pump
Carefully inspect the pump to prevent leaks and conduct periodic test runs to ensure it functions properly. Heavy thunderstorms or flash flooding can lead to malfunctions, so it’s advisable to perform this check at least once a year.
Check the filter
Inspect the filter annually to ensure proper functioning. Any issues may manifest as changes in water colour and foul odours. Clean the filter as needed, following the manufacturer’s instructions.
How to clean a water tank
In addition to performing routine maintenance tasks, don’t overlook the crucial step of cleaning your water tank. A pristine water tank equates to a content and high-performing water storage system.
While particular cleaning processes may differ among manufacturers, the overall sequence of actions is as follows:
Step 1: Drain the rainwater tank
Attach a garden hose to the faucet or valve to water your garden plants or trees, or collect the water in buckets for other reasons, such as car washing, to minimize excessive wasting.
Step 2: Clean the rainwater tank
Create a combination of detergent and boiling water. Then, use a water hose or hot water washer to thoroughly clean the tank’s inside. Pay particular attention to joints and corners, where dirt likes to gather. Allow the cleaning liquid to settle for a couple of hours.
Step 3: Rinse the tank
Refill the tank with mains supply water and rinse it completely, repeating the process as needed. When the water flows clear, consider the rinse accomplished. Use this time to check for and note any leaks.
Step 4: Disinfect the pipes and tank
For tanks supplying drinking water, chlorination is needed. Measure the present chlorine level and add Sodium Hypochlorite as needed to attain the requisite 50PPM (parts per million) free residual chlorine. The system should subsequently be checked by a professional. Use an antibacterial spray to sanitize garden and greywater tanks.
Step 5: Get the tank back into service
Use sodium thiosulphate to neutralize chlorinated water in household tanks if required. Simply fill garden-only rainwater tanks with water, leave them for around 30 minutes, and then cleanse the system one last time.
Lastly, fill your tank halfway with mains water if it provides drinking water, then check the chlorine and total dissolved solids (TDS) levels. Make sure the chlorine levels are between 0.5 and 0.1 PPM and the TDS is within 5%.
How frequently should your rainwater tank be cleaned?
Whether your rainwater tank is used for drinking water or as greywater for flushing toilets or gardens will determine how often you need to clean it.
The deal is this:
The independent water supply regulator, the Drinking Water Inspectorate, advises cleaning drinking water tanks once a year. Nonetheless, we recommend a more proactive strategy, recommending a cleaning regimen every six months, especially for tanks that have seen prolonged use.
On the other hand, rainwater tanks that are just used to store and provide greywater are less demanding. However, every one to two years, a complete cleaning and disinfection should be performed.
It’s important to clean your rainwater tank as soon as possible in addition to these planned maintenance chores if you see a noticeable drop in water quality or notice an excessive buildup of plants and debris. Your rainwater harvesting system’s continuous safety and effectiveness are guaranteed by prompt cleaning procedures and routine attention to detail.
Concluding
One of the most effective and eco-friendly ways to maximize the free resource of rainwater is to install a household water tank.
Additionally,
It can prevent floods in your house and help your yard drain better.
But that’s only possible with a clean water tank.
The conclusion is:
Your rainwater tank has to be maintained on a regular basis. Fortunately, you now understand how to clean a water tank.